<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>背景图片</title>
  <style>
	  .box{
		  background-color: #0aa1ed;
		  margin-top: 1500px;
	  }
	  body {
		  background-image: url("img/video-qq9-poster.9983927f.png (1).webp");
		  background-repeat: no-repeat;
		  background-size: 1500px;
		  background-attachment: fixed;
	  }
  </style>
</head>
<body>
	<div class="box">1</div>
	<div class="box">2</div>
	<div class="box">3</div>
	<div class="box">4</div>
</body>
</html>